On Mon, Jun 12, 2023 at 11:19 AM Eric Dumazet <edumazet@xxxxxxxxxx> wrote: > > On Thu, Jun 8, 2023 at 10:26 PM Alexander Mikhalitsyn > <aleksandr.mikhalitsyn@xxxxxxxxxxxxx> wrote: > > > > Implement SCM_PIDFD, a new type of CMSG type analogical to SCM_CREDENTIALS, > > but it contains pidfd instead of plain pid, which allows programmers not > > to care about PID reuse problem. > > > > We mask SO_PASSPIDFD feature if CONFIG_UNIX is not builtin because > > it depends on a pidfd_prepare() API which is not exported to the kernel > > modules. > > > > Idea comes from UAPI kernel group: > > https://uapi-group.org/kernel-features/ > > > > Big thanks to Christian Brauner and Lennart Poettering for productive > > discussions about this. > > > > Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> > > Cc: Eric Dumazet <edumazet@xxxxxxxxxx> > > Cc: Jakub Kicinski <kuba@xxxxxxxxxx> > > Cc: Paolo Abeni <pabeni@xxxxxxxxxx> > > Cc: Leon Romanovsky <leon@xxxxxxxxxx> > > Cc: David Ahern <dsahern@xxxxxxxxxx> > > Cc: Arnd Bergmann <arnd@xxxxxxxx> > > Cc: Kees Cook <keescook@xxxxxxxxxxxx> > > Cc: Christian Brauner <brauner@xxxxxxxxxx> > > Cc: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx> > > Cc: Lennart Poettering <mzxreary@xxxxxxxxxxx> > > Cc: Luca Boccassi <bluca@xxxxxxxxxx> > > Cc: linux-kernel@xxxxxxxxxxxxxxx > > Cc: netdev@xxxxxxxxxxxxxxx > > Cc: linux-arch@xxxxxxxxxxxxxxx > > Tested-by: Luca Boccassi <bluca@xxxxxxxxxx> > > Reviewed-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx> > > Reviewed-by: Christian Brauner <brauner@xxxxxxxxxx> > > Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@xxxxxxxxxxxxx> > > --- > > Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx> Thanks, Eric! Kind regards, Alex
